【单选题】Being ignorant of the law is not accepted as an ______for breaking the law.
【单选题】Jared is __________ himself for being so ignorant.
【单选题】下面关于误码的描述,错误的是()。
A.
误码是指经接收、判决、再生后,数字码流中的某些比特发生了差错
B.
通过B1、B2、B3可以分别对再生段、复用段和高阶通道的误码情况进行检测
C.
B1、B2、B3只能检测一块中奇数个数的误码,偶数个误码无法检测
D.
SDH系统可以根据B1、B2、B3的检测结果对信号误码进行纠错
【单选题】Being ignorant of the law is not accepted as an __________ for breaking the law.
【单选题】"Being ignorant is not so much a shame, as being unwilling to _______."
【单选题】Being ignorant of the law is no ______of breaking the law.